The agronomic performance was evaluated on coriander lines tolerant to early bolting under two production systems (no-tillage and seedling transplant). The experiment was carried out from June to November 2010. Three coriander lines were evaluated (Guarani#1, Guarani#21 and Guarani#36), and one control (cv. Verdão) in a randomized complete block experimental design, with three replications. The number of leaves per plant (NF), green mass (MVM), green mass/m² (REND), supported marketable period in the field (COM), cycle (CIC) and percentage of bolting (PP), were evaluated. The PP was evaluated in the two production systems at 20, 40, 60, 80, 100 and 120 days after sowing (DAS). Significant differences were obtained in the production system with seedling transplant for NF, MVM and DP between the lines Guarani#36 and Guarani#21 and 'Verdão'. The coriander line Guarani#36 compared to the cv. Verdão was superior in NF, MVM and REND in 246.05%, 162.90% and 165.38%, respectively. Similar superiority was observed in the coriander line Guarani#21 with 211.95%, 148.10% and 150.00% for parameters NF, MVM and REND, respectively. There were no significant differences for CIC between the lines and 'Verdão'. 'In the system of no-tillage the coriander lines Guarani#36 and Guarani#21 presented significant effect in all the evaluated parameters when compared to cv. Verdão, except for cycle of the coriander lines. In the parameters NF, MVM and REND the Guarani#36 coriander line presented superiority of 251.27%, 148.14% and 150% to the cv. Verdão, respectively. The Guarani#21 coriander line compared to cv. Verdão presented superiority of 218.13%, 136.17% and 137.50% for NF, MVM and REND, respectively. The three lines were superior to cv. Verdão on COM for the two tillage systems. The coriander lines Guarani#21 and Guarani#36 present later-bolting in both the systems of production when compared to the cv. Verdão.
Coriandrum sativum; bolting; no-tillage system
